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Subject: [Bug tree-optimization/103682] [12 regression] ICE on atomics:
 gimple check: expected gimple_assign(error_mark), have gimple_nop() in
 gimple_assign_rhs_code, at gimple.h:2852 since r12-5486-g7df89377a7ae3906
Date: Tue, 14 Dec 2021 23:40:27 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103682

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by hongtao Liu <liuhongt@gcc.gnu.org>:

https://gcc.gnu.org/g:a2a0c91b47537b16908981e206f4e42db8425eca

commit r12-5981-ga2a0c91b47537b16908981e206f4e42db8425eca
Author: liuhongt <hongtao.liu@intel.com>
Date:   Tue Dec 14 09:47:08 2021 +0800

    Fix ICE. [PR103682]

    Check is_gimple_assign before gimple_assign_rhs_code.

    gcc/ChangeLog:

            PR target/103682
            * tree-ssa-ccp.c (optimize_atomic_bit_test_and): Check
            is_gimple_assign before gimple_assign_rhs_code.

    gcc/testsuite/ChangeLog:

            * gcc.c-torture/compile/pr103682.c: New test.=